Centrifugal machine.



' H. H. STEPHENS.

CENTRIFUGAL MACHINE.

APPLICATION FILED JULY 25. 1 914 1 ,1 75, 3 1 7 Patented Mar. 14, 1916.

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CENTRIFUGAL MACHINE. APPLICATION FILED JULY25. 1914.

1,175,317. Patented Mar. 14, 1916.

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Figure No 2 W imoe C cmtomw UNITED STATES PATENT OFFICE.

HARRY H. STEPHENS, F PHILADELPHIA, PENNSYLVANIA.

CENTRIFUGAL MACHINE.

Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed July 25, 1914. Serial No. 853,224.

solids, fabricsor fibrous material, and for similar purposes.

My invention resides in apparatus of the character above referred to andparticularly suitable for the extraction of oil from and the cleansingof oily waste or the like, such apparatus involving structure wherebythe drum or basket may be rotated by any suitable motor, and when suchmotor is a steam turbine the exhaust steam is employed for applying heatto the basket contents; and my invention resides further in structurewhereby cleansing material may be introduced into the basket, and inother features.

For an illustration of one of the forms my invention may take, referenceis to be had in the accompanying drawings, in which:

Figure 1 is a vertical sectional view, some parts in elevation, throughapparatus embodying my invention. Fig. 2 is a horizontal sectional view,some parts in plan, taken on the line X-X of Fig. 1. Fig. 3 is ahorizontal sectional view taken on the line YY of Fig. 1.

A suitable standard or base 1, which may be of cast iron, is surmountedby a curb or chamber 2, which may be of cast iron, which has beneath itsbottom 3 a chamber formed between the bottom 3 and the second or lowerbottom 4, the inner wall of the chamber being at 4. And the bottom 3 atits center is formed into the upwardly extending tube or pipe 5.

Upon the curb or member 2 may be secured by bolts 6 of the ring shapedmember 7 to which may be held by clamps 8 the removable cover 9 havingthe dome 10 and the handles 11.

A spider or bracket 12, carried by the pedestal 1, has the centralsocket 13 in which may oscillate or gyrate a ball member 14 upon thelower casing member 15 which with the casing member 16 forms the casingof a steam turbine comprising the rotor 17 carrying the peripheralbuckets 18. Any suitable nozzle, not shown, extends through the wall ofthe casing 16 and delivers steam against the buckets .18 in thewell-known manner. The exhaust steam passes out through the opening 19,in the turbine casing and passes thence through the flexible hose 20 andconnection 20' into the chamber between the members 3 and. 4 and thencemosphere or condenser. Secured upon the casing member 16 is the bearingbracket 22 steadied against lateral movement by a plurality of rods 23,each carrying at its inner end a ball 24 engaging in a socket on themember 22, each rod 23 carrying at its outer end a buffer member 25between which and The sleeve is confined between the shoulder 33 on theshaft 31 and a collar 34 secured to the shaft 31 by pin 35. On the upperend of the hollow cylindrical member 22 may be provided a cap 36.Secured to the shaft 31 between its shoulder 37 and the 'nut 38 threadedon the shaft 31 is the hub 39 of the hollow cylindrical member 40 whichembraces the stationary member 5, through which the rotary shaft 31extends. At its lower end the member 40 has the horizontal disk-likeextension 41 secured by rivets 42 to the bottom 43 of the drum or basket44. As seen in Fig. 1 the member 41 is spaced from said bottom 43 andwith this space communicates a pipe 45 supported by a bracket 46 onmember 40. Asimilar pipe 45' may besupported symmetrically with respectto the shaft 45 and serve as a weight to balance the weight of the pipe45. The pipe 45 extends upwardly through a removable cover 47, havinghandles 48, which closes the aperture in the inturned flange 49 on thebasket 44. A quickly attachable and detachable fluid connection 50 isadapted to connect the pipe 45 with the pipe 51 which swings in ahorizontal plane about the pipe connection 52 which extends through thewall of member 2 and communicates with the steam inlet pipe 53 and thewater inlet pipe 54. The member 41 has a plurality of perforations 55forming communication from the space between members 41 and 43 and theinterior of the basket 44.

The operation is as follows: The oily through the exhaust opening 21 tothe at- Y waste or other material to be operated upon. is placed in thebasket 44 and the covers replaced. The turbine is then started and thesame rotates the shaft 31 and the attached basket 44 at high speed, anddue to centrifugal action the oil or other material passes out, throughthe perforations in the basket 44 to the interior of the member 2 andpasses out through the oil outlet or drain 56, Fig. 2, the water outlet57 being suitably closed, as by a valve in the pipe connecting with theopening 57. The exhaust steam from the motor passes through passage 19,flexible hose. 20 and the connection 20 into the space beneath thebottom 3, heating the same, heat being transferred through the bottom 3to the interior of the curb 2 thus heating the basket and its contentsand rendering the separation of the liquid or oil the easier, withoutadding water of condensed steam to either the waste or oil, the exhauststeam passing out-through the passage 21 as before stated. "And steammay be admitted into the curb 2 through pipes 53 and 51 when the latteris disconnected from pipe 45.

After a suitable time the steam supply to the turbine is discontinued,and by pressing upon the lever 58 outside of the curb 2 and pivoted at59, the brake shoe 60 within curb 2 is caused to press against the underside ofthe basket 44 to bring the same quickly to rest. Then the cover 9is removed and the pipe 51, previously detached from the pipe 45, 1sswung over into alinement with the pipe 45 and connected therewith bythe connector '50. The waste or other content which has been impactedonthe inner wall of the basket is spread into the body of the basketand, if desired, soap or washing powder may be added. Then steam andwater are admitted through pipes 53 and 54, pass into the space betweenmember 41 and the bottom 43 and thence upwardly through the passages 55into the basket, thoroughly agitating and washing the waste or othercontents of the basket. In the meantime the pipe connecting with the oiloutlet 56 has been closed, as by a valve. The water and.

the condensed steam rise within the basket 44 and the curb 2 to theheight of the overflow 61 and flow out through a pipe connected thereto.The member 5 serves as a dam and extends above the level of the overflow61 to prevent water passing down around shaft 31 and escaping below. Thepipe 51 is again'disconnected from pipe 45 and the covers replaced andthe turbine again started to rotate the basket 44 at high speedwhereupon the washing water is celltrifugally extractedi and flows outthrough the opening 57, ;jthe valve in thepipe conmeeting with-5'Zjhaving been opened. And

the continued. application of heat from the exhaust steam more or lesscompletely dries the waste or other material. By this treaftment the oilor other material is first extracted and then the contents of the basketmay be washed and cleaned as described.

During the rotation of the shaft 31, basket 44 and the turbine oscillateas a unit on the member 14-, and the oscillations are dampened throughthe rods 23.

\Vhat I claim is:

1. The combination with a centrifugal basket, of a pipe rotatabletherewith, a double bottom for said basket forming a chamber with whichsaid pipe connects, and a plurality of perforations affordingcommunication between said chamber and the interior of said basket.

2. The combination with a centrifugal basket, of a pipe rotatabletherewith, a double bottom for said basket forming a chamber with whichsaid pipe connects, a plurality of perforations affording communicationbetween said chamber and the interior of said basket, and means fordetachably con necting said pipe with a fluid supply.

3. The combination with a centrifugal basket, of a pipe rotatabletherewith, a double bottom for said basket forming a chamber with whichsaid pipe connects, a plurality of perforations affording communicationbetween said chamber and the interior of said basket, and means fordetachably connecting said pipe with a supply of steam 4 and water.

4. The combination with a centrifugal basket, of a pipe rotatabletherewith, a double bottom ,for said basket forming a chamber with whichsaid pipe connects, a plurality of perforations affording communicationbetween said chamber and the interior of said basket, a casingsurrounding said basket, a fluid connection extending through saidcasing, and means for detachably securing said pipe with said fluidconnection.

5. The combination with a centrifugal basket, of a pipe rotatabletherewith, a double bottom for said basket forming a chamber with whichsaid pipe connects, a plurality of perforations affording communicationbetween said chamber and the interior of said basket, a casingsurrounding said basket, a pipe extending through the wall of saidcasing, and a swinging pipe connecting therewith and adapted to bedetachably con nected with said first named pipe.

6. The combination with an oscillatory rotating shaft, of a hollowmember secured on the upper end of said shaft and extending downwardlyalong said shaft and spaced therefrom, a centrifugal basket secured atits'bottom to said hollow member, a curb incl'osing said basket, and astationary sleeve at the center of said curb extending upwardlybeyon'dsaid basket into the space between said hollow member and said shaft,said sleeve being open and free of said shaft at its upper end, saidhollow member and said shaft oscillating with respect to said sleeve.

7. The combination with an oscillatory rotating shaft, of a hollowmember secured on the upper endof said shaft and extending along saidshaft, a centrifugal basket secured to said hollow member, and a damembracing said shaft and disposed between said shaft and said hollowmember.

8. The combination. with an oscillatory rotating shaft, of a hollowmember secured on the upper end of said shaft and extending along saidshaft, a centrifugal basket secured to said hollow member, and a casinginclosing said basket and a hollow extension on the bottom of saidcasing extending upwardly along said shaft between said shaft and saidhollow member.

9. The combination with a turbine casing and its rotor, of anoscillatory support for said casing, a shaft secured to said rotor andoscillating with said casing, a centrifugal basket driven by said shaft,a casing inclosing said basket, a hollow bottom for said casing, and aconnection for steam exhausting from said turbine into said hollowbottom. V

10. The combination with a turbine casing and its rotor, of anoscillation bearing at the lower side of said casing, a shaftoscillating with said casing and secured to said rotor, a centrifugalbasket secured upon said shaft above said turbine, a casing for saidbasket, said casing having a hollow bottom, and a connection from saidturbine to said hollow bottom for delivering exhaust steam thereto.

11. The combination with a rotary shaft, of a hollow member secured tothe upper end of said shaft and extending downwardly and embracing saidshaft, a centrifugal basket secured to said hollow member, a casing forsaid basket, an overflow opening in said casing, and an extension on thebottom of said casing extending upwardly and around said shaft betweensaid shaft and said hollow member to a point above said overflowopening.

12. The combination with a rotating shaft, of a hollow .member securedon the upper end of said shaft and extending downwardly along saidshaft, a flange onsaid hollow member at its lower end, a centrifugalbasket, the bottom of said basket secured to said flange and spacedtherefrom, saidbottom and .flange forming walls of a oliamber, one ofsaid walls having perforations providing communication between saidchamber and the interior of said basket, and means for conducting fluidinto said chamber.

13. The combination with an oscillatory rotating shaft, of a hollowmember secured on the upper end of said shaft and extending downwardlyalong said shaft, a flange nicating with said chamber.

on said hollow member at its lower end, a centrifugal basket, the bottomof said basket secured to said flange and spaced therefrom to form achamber, said flange having perforations communicating with said chamberand with the interior of said basket, and a pipe rotatable with saidbasket and commu- 14. The combination with an oscillatory rotatingshaft, of a hollow member secured on the upper end of said shaft andextending downwardly along said shaft, 'a flange on said hollow memberat its lower end, a centrifugal basket, the bottom of said basketsecured to said flange and spaced therefrom to form a chamber, saidflange having perforations communicating with said chamber and with theinterior of said basket, a'pipe rotatable with said basket andcommunicating with said chamber, and means for detachably connectingsaid pipe with a fluid upp y- 15. The combination with an oscillatoryrotating shaft,'of a hollow member secured on the upper end of saidshaft and extending downwardly along said shaft, ,a flange on saidhollow member at its lower end, a centrifugal basket, the bottom ofsaidbasket secured to said flange and spaced.v therefrom to form a.chamber, said flange having perforations communicating with said chamberand with the interior of said basket, a casing surrounding said basketand having an overflow outlet, and a dam embracing said shaft anddisposed between said shaft and said hollow member and extending abovesaid outlet.

16. The combination with an oscillatory rotating shaft, of a hollowmember secured on the upper end of said shaft and extending downwardlyalong said shaft, a flange on said hollow member at its lower end, acentrifugal basket, the bottom of said basket secured tosaid flange andspaced therefrom to form a chamber, said flange havingperforationscommunicating with said chamber and with the interior ofsaid basket, a pipe rotatable with said basket and communicating withsaid chamber, a casing surrounding said basket and having an overflowoutlet,

and a dam embracing said shaft and dis-.

posed between said shaft and said hollow member and extending above saidoutlet. 1

17 The combination with an oscillatory rotating shaft, of a hollowmember secured on the upper end of said shaft and extending downwardlyalong said shaft, a flange on said hollow member at its lower end, acentrifugal basket, the bottomof said basket secured to said flange andspaced therefrom to form a chamber, said flange having perforationscommunicating with said chamber and with the interior of said basket, apipe rotatable with said basket and communicating with said chamber,means for detachably connecting said pipe with a fluid supply, a casingsurrounding said basket and having an overflow outlet, and a darnembracing said shaft and disposed between said shaft and said hollowmember and extending above said outlet.

18. The combination with a centrifugal basket, of a stationary curbinclosing the same, a shaft, a hollow member secured on the upper end ofsaid shaft and extending downwardly along said shaft and spacedtherefrom, said basket secured to said hol--

